Buffer



. Aug. 22, 1933. G. ZQUCK] 1,923,134

BUFFER Filed Sept. 24, 1928 17 18 23 W Ihm. l..mum-111|uw.. mlmnv'lnulm .will

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f /v 13 if/s- INVENTOR 21 16 BY y 4 y M15/V515 Patented Aug. 22, 1933 BUFFER George H. Zouek, Orange, N. J., assigner to` Franklin Railway Supply Company,

New' Y York, N. Y., a Corporation of Delaware Application september .24, 192s -serial N o. 301,859

10 Claims. (Cl. 213-221) This invention relates to buffers for use between coupled railway vehicles and more particularly for use between engines and their tenders. v

Among the objects of the invention is the provision of a builer mechanism which is rugged in construction and which may be easily and effectively adjusted to take up slack resulting from wear.

How the foregoing, together with other objects and advantages, are obtained will appear to better advantage from a consideration of the following description taken with the accompanying drawing which illustrates the preferred embodiment of the invention.-

Of the drawing:

Fig. 1 is avertical section of portions of a locomotive and a tender frame with my im? proved buffer mechanism therebetween.

Fig. 2- is a top view partly in section and partly in elevation of the improved buffer and imme diately associated parts. t

Fig. 3 is a section taken on the linev 3-3 of Fig.-2, and

Fig. 4 is a section taken on the line 4 4 of Fig. 2.V

Referring now more particularly to the drawing, it will be seen that the buffer mechanism illustrated is mounted between opposed portions of the locomotive and tender frames 5 and 6, respectively, and that a coupling mechanism of well known construction including a service bar 'I and a safety bar 8, together with the necessary draw bar pins 9, is provided for transmitting the pulling strains from the locomotive to the tender.

The buffer shown isof the radial type having chang or wear plates lOland 11 which are constructed with theirwearing surfaces formed on circles whose centers 'coincide with the coupling or draw bar pins 9. The chang'plate 11 is directly secured tothe locomotive frame while the chafing plate 10 is resiliently supported on the frame of the tender in a manner to be described hereinafter. A chaflng block 12 having transversely curved concave bearing surfaces is positioned between the plates 10 and 1l.

The mechanism associated with the tender frame 6 includes a pocket-like member 13 into Coiled which the wearing plate 10 telescopes. springs 14 and 154are provided for cushioning the buing strains and for maintaining va small amount of tension onthe service draw bar '7. It Ishould be noted that these springs 14 and 15 react betweenthe plate 10 and a spring backing member 16 positioned in the pocket member 13.

member 13.

vbuffer parts.

One end of the pocket member 13 is apertured to permit insertion of the wedges 17, the same being positioned at the top and bottom of the The spring backing member 16 is provided with shoulders 18 at the upper and lower edges thereof which are angled transversely ot the coupled vehicles and which seat against the correspondingly angled surfaces of the wedges 17. It should here be noted that this arrangement of wedges permits a reduction in overall thickness or spreadl of the buier over that possiblev with other arrangements because the wedges maybe set into the spring backing member 16 above and below 7 thus compensate for the increase in slack incident to wear either on the buier parts or on the draw bar l or the pins 9. Inorder to facilitate adjustment of the wedges 17 or to facilitate initial assembly or subsequent replacement of the buer parts, I have provided a mechanism for relieving the pressure oir-the springs Hand 15 on the wedges 17. This mech- 89 anism includes threaded apertures at the ends of the spring backing member 16 which are adapted to receive bolts 19 inserted through apertured lugs 20 at the ends of the channg plate 19. When it is desiredvto effect an adjustment the bolts 19 are inserted through the apertured lugs 20 and screwed into the threaded apertures at the ends of the backing member 16. When this is done the springs 14 and 15 are compressed between the members 10 and 16 and the pressure on the wedges 17 and the chang blockV 12 is consequently relieved, providing for easy adjustment of the wedges or replacement of any of the The wedges 1'1 may be secured in adjusted po-l sition by means of a pin 21 which extends vertically at one end of the device passing through openings 22 in the wedges 17 and corresponding openings or apertures in the upper and lower sides of the pocket member 13.

The members 13, 16 and 10 are suitably apertured to receive the vertically extending pin 23 which serves toretain the buffer elements in as- Y sembled position when the buier is not in operative position between the coupled vehicles. Y

It should be observed that the provision of a `wedge at the top and bottom of the backing member 16 not only provides a very stable or rigid support for the butler, but also permits effective spread in view of the fact that the wedges may be somewhat set into the spring backing member. l

1. A buffer construction for coupled vehicles including a buffer plate for one of the vehicles, spring means for supporting the plate, a spring backing member and wedge means behind said backing member for adjusting the tension of said spring means, together with means associated with said plate and said backing member for relieving the pressure on said wedge means to facilitate adjustment thereof.

2. A buffer construction for coupled vehicles includinga buffer plate, spring means for sup porting the plate, a spring backing member behind the plate and a pair of wedges behind the backing member for adjusting the spring tension, together with a single device for securing said wedges in adjusted position, said wedges being spaced from each other to accommodate, at least partially, the spring means.

3. A buffer construction for coupled vehicles including a buffer plate, spring means for`sup' porting the plate, a spring backing member behind the plate and a pair of wedges behind the backing member for adjusting the spring tension, together with a single device for securing said wedges in adjustedposition, including an apertured member associated with the vehicle frame,

' apertures in the Wedges and a pin adapted to extend through an aperture of said last mentioned member and an aperture in each of the wedges,

said wedges being spaced from each other Ato accommodate, at least partially, the spring means.

4. A buffer construction including a pocket member, a buffer plate, spring means associated therewith for supporting the plate, a spring backing member in said pocket and a pair of adjustable wedges reacting between said pocket member and said backing member, one at the upper and the other at the lower edge thereof, said wedges being spaced from each other to accommodate, at least partially, the spring means.

5. A buffer construction for coupled vehicles including buffer plate and backing members telescopically associated with each other, spring means reacting between said members, a buffer pocket adapted to accommodate said members with a portion-of said `buffer plateprojecting therefrom, and a pair of spaced wedges between the backing member and an inside surface of said pocket, said backing member having spaced recessed portions arranged to accommodate said wedges.

6. A bulfer construction for coupled vehicles including buffer plate and backing members telescopically associated with each other, spring means reacting between said members, a buffer pocket adapted to accommodate said members with a portion of said buffer plate projecting therefrom, and a pair of spaced wedges between the backing member and an inside surface of said pocket, said backing member having spaced recessed portions arranged above and below the vertical extension of said spring means to accommodate said wedges.

'7. A buffer construction for coupled vehicles including buffer plate and backing members telescopically associated -with each other, spring means reacting between said members, a buffer pocket adapted to accommodate Asaid members with a portion of said buffer plate projecting therefrom, springl reaction adjusting wedge means interposed' between the backing member and an inside surface of the buffer pocket, and means reacting between the plate and backing -members to compress the spring means therebetween, whereby adjustment of said reaction adjusting means is facilitated.

8. A buffer construction including a pocket member, a buffer plate, spring means associated therewith for supporting the plate, a spring backing member in said pocket, and wedge means reacting betweenA the pocket member and the backing member for adjusting the tension of said spring means, together with means react- `ing between said plate and said backing member for relieving the pressure on said wedge mean to facilitate adjustment thereof.

9. A buffer construction for coupled vehicles including a buffer plate, spring means for supporting the plate, a spring backing member behind the spring means having recessed portions at opposite edges thereof, and wedge means for adjusting the spring tension accommodated at least partially in the said recessed portions of the backing member. i

10. A buffer construction for coupled vehicles including a buffer plate, spring means for supporting the plate, a spring backing member behind the spring means having recessed portions at the upper and lower edges thereof, and wedge means for adjusting the spring tension accommodated at least partially in the said recessed portions of the backing member.

i GEORGE H. ZOUCK. 

